refactor: withdraw related notes

src/interfaces/ISablierV2Lockup.sol

@@ -242,8 +242,8 @@ interface ISablierV2Lockup is
     /// @dev Emits a {Transfer}, {WithdrawFromLockupStream}, and {MetadataUpdate} event.
     ///
     /// Notes:
-    /// - This function attempts to invoke a hook on the stream's recipient, provided that the recipient is a contract
-    /// and `msg.sender` is not the recipient.
+    /// - This function attempts to call a hook on the recipient of the stream, unless `msg.sender` is the recipient.
+    /// - This function attempts to call a hook on the sender of the stream, unless `msg.sender` is the sender.
     ///
     /// Requirements:
     /// - Must not be delegate called.
@@ -295,6 +295,7 @@ interface ISablierV2Lockup is
     ///
     /// Notes:
     /// - This function attempts to call a hook on the recipient of each stream, unless `msg.sender` is the recipient.
+    /// - This function attempts to call a hook on the sender of each stream, unless `msg.sender` is the sender.
     ///
     /// Requirements:
     /// - Must not be delegate called.

src/interfaces/hooks/ISablierV2Recipient.sol

@@ -33,7 +33,7 @@ interface ISablierV2Recipient {
     /// @param streamId The id of the renounced stream.
     function onLockupStreamRenounced(uint256 streamId) external;
 
-    /// @notice Responds to withdrawals triggered by either the stream's sender or an approved third party.
+    /// @notice Responds to withdrawals triggered by anyone unless `caller` is the recipient address.
     ///
     /// @dev Notes:
     /// - This function may revert, but the Sablier contract will ignore the revert.

src/interfaces/hooks/ISablierV2Sender.sol

@@ -6,7 +6,7 @@ pragma solidity >=0.8.22;
 /// @dev Implementation of this interface is optional. If a sender contract doesn't implement this
 /// interface or implements it partially, function execution will not revert.
 interface ISablierV2Sender {
-    /// @notice Responds to withdrawals triggered by either the stream's recipient or an approved third party.
+    /// @notice Responds to withdrawals triggered by anyone unless `caller` is the sender address.
     ///
     /// @dev Notes:
     /// - This function may revert, but the Sablier contract will ignore the revert.

test/integration/fuzz/lockup/withdraw.t.sol

@@ -155,7 +155,6 @@ abstract contract Withdraw_Integration_Fuzz_Test is Integration_Test, Withdraw_I
     /// - Multiple withdraw amounts
     function testFuzz_Withdraw(
         uint256 timeJump,
-        address caller,
         address to,
         uint128 withdrawAmount
     )